THE FACE OF THE EARTH AS SEEN FROM THE AIR
Reading edition
A Study in the Application of Airplane Photography to Geography BY WILLIS T. LEE U. S. Geological Survey AMERICAN GEOGRAPHICAL SOCIETY BROADWAY AT 156TH STREET NEW YORK 1922 COPYRIGHT, 1922 BY THE AMERICAN GEOGRAPHICAL SOCIETY OF NEW YORK CONDÉ NAST PRESS GREENWICH, CONN.
